Animal pen



FIG. 1 is a perspective view of an animal pen, showing our ornamental design;

FIG. 2 is a front elevation view of the animal pen of FIG. 1;

FIG. 3 is a rear elevation view of the animal pen of FIG. 1;

FIG. 4 is a left side elevation view of the animal pen of FIG. 1;

FIG. 5 is a right side elevation view of the animal pen of FIG. 1;

FIG. 6 is a top plan view of the animal pen of FIG. 1; and,

FIG. 7 is a bottom plan view of the animal pen of FIG. 1.

The broken lines in the drawings illustrate portions of the animal pen that form no part of the claimed design.

The dot-dash lines in the drawings illustrate boundaries and form no part of the claimed design. 

CLAIM The ornamental design for an animal pen, as shown and described. 